Astronomical telescope



FIG. 1 is a top plan view of an astronomical telescope showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a top, right side, rear perspective view. 

The ornamental design for an astronomical telescope, as shown and described. 